III. An Accomt of a Stone of the Bladder^ 
rphich xpeighed 5 9 Omces^ or Three Founds 
Three Ounces^ and a Stone out of the Bladder 
fnccej^fnUy^which adhered to it. By Dr.Charles 
Prefton. 
IN the Hofpital^ at Paris called, L Hopital de La 
CharitCy there is preferved, amongft the great num- 
ber of Stones, Extrafted from the Bladder, by the Ope- 
ration of Lithotomy^ one of a prodigious bigneft, weigh- 
ing about Fifty one Ounces, which makes Three Pounds 
and Three Ounces ; it was taken from one of the Reli- 
gious Brothers, in the Houfe who attends the Sick, in 
the Month of June 1690. but he Dyed in the Operati- 
on I for the Stone being fo big, it could not be Extra- 
d:ed till after his Death, it is kept ds a great Curiofity, 
with an Infcription upon it in French ^ as follows : 
Tierre pefant 5 x onces qui font 3 Livres 3 ences. 
Qui aejle tire dans cet hopital: au Mois 
De JuiUy 1690. et que I' on conferve dans le convent. 
In the Month oi'June^ 1696. while I was at Ghent at- 
tending his Majefty's Hofpital, there happened a very 
fingular Cafe in the Operation of Lithotomy, viz. a 
Stone adherent to the bottom of the Bladder ; this was 
found by one Monfieur Parfaim Lichotomift of the 
Place, who when he made tne Operation could not Ex- 
trad the Stone, but was obliged to leave his Patient in 
that Cafe, there followed an! mpofthume, fo that eight 
Days after, he Extraited it with great eafe. The next 
Day he fliewed me the Stone (as aUb to moft of the 
Chyrur- 
